CN101364741B - Mobile phone charger - Google Patents
Mobile phone charger Download PDFInfo
- Publication number
- CN101364741B CN101364741B CN2007102013171A CN200710201317A CN101364741B CN 101364741 B CN101364741 B CN 101364741B CN 2007102013171 A CN2007102013171 A CN 2007102013171A CN 200710201317 A CN200710201317 A CN 200710201317A CN 101364741 B CN101364741 B CN 101364741B
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- China
- Prior art keywords
- mobile phone
- circuit module
- charging
- voltage
- diode
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- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02J—CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
- H02J7/00—Circuit arrangements for charging or depolarising batteries or for supplying loads from batteries
- H02J7/34—Parallel operation in networks using both storage and other dc sources, e.g. providing buffering
- H02J7/342—The other DC source being a battery actively interacting with the first one, i.e. battery to battery charging
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- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Charge And Discharge Circuits For Batteries Or The Like (AREA)
Abstract
A mobile phone charger includes a battery pack module, a boosting and charging circuit module, an ultralow-voltage boosting circuit module, and a mobile phone charging interface connector, wherein the battery pack module is used for providing a work voltage to the boosting and charging circuit module and the ultralow-voltage boosting circuit module; the boosting and charging circuit module works and outputs a charging voltage to the mobile phone charging interface connector when the work voltage is larger than the reference voltage of the boosting and charging circuit module; and the ultralow-voltage boosting circuit module works and improves the work voltage to the boosting and charging circuit module so as to enable the boosting and charging circuit module to work and output the charging voltage to the mobile phone charging interface connector when the work voltage is smaller than the reference voltage of the boosting and charging circuit module and larger than the start voltage of the ultralow-voltage boosting circuit module. The mobile phone charger can be used for charging a mobile phone by using familiar battery packs, thereby fully utilizing the energy and protecting the environment.
Description
Technical field
The present invention relates to a kind of charger for mobile phone.
Background technology
Current, along with the development of telecommunications industry, mobile phone is popularized gradually, brings great convenience for people's live and work.But mobile phone in use for some time; Just need charging; And mostly need convert the 220V alternating current in the mobile phone the receptible 5V direct current of lithium battery during present cell-phone charging with transformer, when just defining cell-phone charging, this need just can carry out in certain fixed place.But for the people of some frequent business trip and tourism, this charging modes is very inconvenient.
Summary of the invention
In view of foregoing, be necessary to provide a kind of charger for mobile phone, can directly use battery is cell-phone charging.
A kind of charger for mobile phone comprises that a battery module, boosts and charging circuit module, a ultralow pressure booster circuit module and a mobile phone charging inlet connector; Said battery module provides an operating voltage to boost and charging circuit module and said ultralow pressure booster circuit module to said; When said operating voltage during greater than the said reference voltage that boosts with the charging circuit module; Saidly boost with the work of charging circuit module and export a charging voltage and give said mobile phone charging interface connector; When said operating voltage is boosted with the reference voltage of charging circuit module and during greater than the starting resistor of said ultralow pressure booster circuit module less than said, said ultralow pressure booster circuit module work also promotes said operating voltage and makes its work with the charging circuit module and export said charging voltage and give said mobile phone charging interface connector for said boosting.
Compare prior art; Charger for mobile phone of the present invention can utilize the battery that is seen everywhere and boost and the charging circuit module is charged to mobile phone through said; And, reduced the battery usage quantity owing to used ultralow pressure booster circuit, charger for mobile phone can use the battery supply (if any the old and useless battery of certain electric weight) of low voltage to charge; Accomplished portable and made full use of the energy, also be beneficial to environmental protection.
Description of drawings
Below in conjunction with accompanying drawing and embodiment the present invention is described in further detail:
Fig. 1 is the circuit block diagram of the embodiment of charger for mobile phone of the present invention.
Fig. 2 is the circuit diagram of Fig. 1.
Embodiment
Please consult Fig. 1 and Fig. 2 jointly, the embodiment of charger for mobile phone of the present invention comprises that a battery module 10, boosts and charging circuit module 20, a ultralow pressure booster circuit module 30, an indicating module 40 and a mobile phone charging inlet connector 50.Said battery module 10 connects said boosting and charging circuit module 20 and said ultralow pressure booster circuit module 30; Said boosting is connected said ultralow pressure booster circuit module 30, said indicating module 40 and said mobile phone charging interface connector 50 respectively with charging circuit module 20; Said ultralow pressure booster circuit module 30 connects said indicating module 40; Above element can be arranged at (not shown) in the housing, and the size of housing, shape can design according to designer's hobby.When said charger for mobile phone is in running order; Promptly when packing battery in the said battery module 10; If the voltage that said battery module 10 provides is greater than the said reference voltage (like 1.25V) that boosts with charging circuit module 20, said boost and charging circuit module 20 exportable 5V ~ 8V can be used for the charging voltage that the mobile phone emergent charging is used; If the voltage that said battery module 10 provides boosts with the reference voltage of charging circuit module 20 and greater than a starting resistor (like 0.3V) less than said; Through starting said ultralow pressure booster circuit module 30; Offer said boosting and charging circuit module 20 operating voltages; Make the charging voltage of its output 5V ~ 8V, guarantee the continuous use of mobile phone emergent charging.Said mobile phone charging interface connector 50 can also can be designed to " omnipotent " convert charging interface to satisfy the needs of different user according to the Interface design of the actual mobile phone of user.Said indicating module 40 can serve as power supply indicator when giving cell-phone charging again, when not giving cell-phone charging, can serve as emergency light.
Said battery module 10 comprises that a battery pack B is (like a 0.3V ~ 6V) and a K switch 1.One end of said K switch 1 is connected with the positive pole of said battery pack B, and the other end connects said boosting and charging circuit module 20 and said ultralow pressure booster circuit module 30, the minus earth of said battery pack B.Said battery pack B can use two No. 7, joints or No. 5 batteries or have the old and useless battery of certain electric weight, the keying of the said charger for mobile phone power supply of said K switch 1 control.
Said boost and charging circuit module 20 comprises that one first resistor R 1, one second resistor R 2, one first capacitor C1, one first inductor L1, rheology always change chip 21, one first diode D1, one second capacitor C2, one the 3rd resistor R 3, one the 3rd capacitor C3, one the 4th capacitor C4, one the 4th resistor R 4, one the 5th resistor R 5 and one the 5th capacitor C5.The other end of the K switch 1 of said battery module 10 connects the input SHDN of said DC converting chip 21 through said first resistor R 1; Also, also be connected to the inductance link LX of said DC converting chip 21 through the said first inductor L1 through the said first capacitor C1 ground connection.The input SHDN of said DC converting chip 21 also links to each other with said ultralow pressure booster circuit module 30 through said second resistor R 2.The inductance link LX of said DC converting chip 21 is connected to the anode of the said first diode D1; The negative electrode of the said first diode D1 links to each other with said mobile phone charging interface connector 50 through said the 3rd resistor R 3; And connecting the output OUT of said DC converting chip 21, the negative electrode of the said first diode D1 is also through the said second capacitor C2 ground connection.Said mobile phone charging interface connector 50 is through said the 3rd capacitor C3 ground connection, also through said the 4th capacitor C4 ground connection.Said the 4th resistor R 4 is serially connected with between the output OUT and feedback end FB of said DC converting chip 21; Said the 5th resistor R 5 is serially connected with between the feedback end FB and earth terminal GND of said DC converting chip 21; The reference voltage output terminal REF of said DC converting chip 21 is through said the 5th capacitor R5 ground connection, the low-voltage input LBI ground connection of said DC converting chip 21.Said first resistor R 1 is a starting resistance; Said first capacitor C1 and the said first inductor L1 form accumulator; The electric current backflow that the said first diode D1 utilizes the unilateral conduction of diode to prevent to get into mobile phone is turned round and stretched out the hand the machine charger; The said second capacitor C2, said the 3rd capacitor C3 and said the 4th capacitor C4 form filter circuit, and the model of said DC converting chip 21 is MAX757.
Said ultralow pressure booster circuit module 30 comprises a direct current boost chip 31, one the 6th capacitor C6, one the 7th capacitor C7 and one the 8th capacitor C8.The voltage input end VIN of said DC boosting chip 31 connects the other end of the K switch 1 of said battery module 10, also through said the 6th capacitor R6 ground connection.The output OUT of said DC boosting chip 31 connects the other end of the K switch 1 of said battery module 10, also connects the input SHDN of said DC converting chip 21 through said second resistor R 2, also through said the 8th capacitor C8 ground connection.The startup electric capacity line scan pickup coil side CPout of said DC boosting chip 31 is through said the 7th capacitor C7 ground connection, and the output voltage monitoring client VM of said DC boosting chip 31 connects said indicating module 40, and the model of said DC boosting chip 31 is S-882Z20-M5T1G.
Said indicating module 40 comprises one second diode D2, one the 3rd diode D3, a variable resistance RP1 and one the 6th resistor R 6.Said mobile phone charging interface connector 50 is connected with the anode of the said second diode D2; The negative electrode of the said second diode D2 connects the anode of said the 3rd diode D3; The negative electrode of said the 3rd diode D3 connects the end of said variable resistance RP1; The other end of said variable resistance RP1 connects the output voltage monitoring client VM of said DC boosting chip 31, also through said the 6th resistor R 6 ground connection.Said second diode D2 and said the 3rd diode D3 are white high brightness LED; Through regulating the brightness of said second diode D2 of said variable resistance RP1 may command and said the 3rd diode D3, its power supply indicator or emergency light as said charger for mobile phone is used.
Said charger for mobile phone pack into battery or the old and useless battery of certain electric weight is arranged after; The K switch 1 of closed said battery module 10; Said charger for mobile phone is promptly in running order, and the voltage that provides as the battery pack B of said battery module 10 is during greater than the said reference voltage that boosts with the DC converting chip 21 of charging circuit module 20, said boost and charging circuit module 20 starts; And output 5V ~ 8V charging voltage, be used for to cell-phone charging.The voltage that provides as said battery pack B is greater than said starting resistor during less than the reference voltage of said DC converting chip 21; Start said ultralow pressure booster circuit module 30 earlier and carry out boost in voltage; The output voltage of a 3V ~ 5V is offered the said input that boosts with the DC converting chip 21 of charging circuit module 20, make it produce a chargeable voltage that is output as 5V ~ 8V and supply cell-phone charging to use.Said charging voltage makes the said second diode D2 and said the 3rd diode D3 in running order, and the power supply indicator or the emergency light that can be used as said charger for mobile phone use, and its quantity is not limited to two, can select according to actual needs.
Charger for mobile phone of the present invention can utilize the battery pack that is seen everywhere or have the old and useless battery of certain electric weight in case of emergency mobile phone to be charged, and makes full use of the energy and protects environment again, at dark, also has the function of flashlight.
Claims (9)
1. a charger for mobile phone comprises that a battery module, boosts and charging circuit module, a ultralow pressure booster circuit module and a mobile phone charging inlet connector; Said battery module provides an operating voltage to boost and charging circuit module and said ultralow pressure booster circuit module to said; When said operating voltage during greater than the said reference voltage that boosts with the charging circuit module; Saidly boost with the work of charging circuit module and export a charging voltage and give said mobile phone charging interface connector; When said operating voltage is boosted with the reference voltage of charging circuit module and during greater than the starting resistor of said ultralow pressure booster circuit module less than said, said ultralow pressure booster circuit module work also promotes said operating voltage and makes its work with the charging circuit module and export said charging voltage and give said mobile phone charging interface connector for said boosting.
2. charger for mobile phone as claimed in claim 1; It is characterized in that: said battery module comprises a battery pack and a switch; One end of said switch is connected with the positive pole of said battery pack; The other end connects said boosting and charging circuit module and said ultralow pressure booster circuit module, the minus earth of said battery pack.
3. charger for mobile phone as claimed in claim 2 is characterized in that: the voltage of said battery pack is 0.3V～6V.
4. charger for mobile phone as claimed in claim 2; It is characterized in that: said boost and the charging circuit module comprises that one first resistor, one second resistor, one first capacitor, one first inductor, a model are DC converting chip, one first diode and one the 3rd resistor of MAX757; The other end of the switch of said battery module connects the input of said DC converting chip through said first resistor; Also through said first capacitor grounding; Also be connected to the inductance link of said DC converting chip through said first inductor; The input of said DC converting chip also links to each other with said ultralow pressure booster circuit module through said second resistor; The inductance link of said DC converting chip is connected to the anode of said first diode, and the negative electrode of said first diode links to each other with said mobile phone charging interface connector through said the 3rd resistor, and its negative electrode also connects the output of said DC converting chip.
5. charger for mobile phone as claimed in claim 4; It is characterized in that: said ultralow pressure booster circuit module comprises that a model is the DC boosting chip of S-882Z20-M5T1G; The voltage input end of said DC boosting chip connects the other end of the switch of said battery module; The output of said DC boosting chip connects the other end of the switch of said battery module, also connects the input of said DC converting chip through said second resistor.
6. charger for mobile phone as claimed in claim 5 is characterized in that: it is 0.3V～3V that said ultralow pressure booster circuit module allows input voltage.
7. charger for mobile phone as claimed in claim 1 is characterized in that: said charger for mobile phone also comprises an indicating module, and said indicating module links to each other with said mobile phone charging interface connector.
8. charger for mobile phone as claimed in claim 7; It is characterized in that: said indicating module comprises one second diode, one the 3rd diode, a variable resistance and one the 6th capacitor; Said mobile phone charging interface connector is connected with the anode of said second diode; The negative electrode of said second diode connects the anode of said the 3rd diode; The negative electrode of said the 3rd diode connects an end of said variable resistance, and the other end of said variable resistance connects the output voltage monitoring client of said DC boosting chip, also through said the 6th capacitor grounding.
9. charger for mobile phone as claimed in claim 8 is characterized in that: said second diode and said the 3rd diode are light-emitting diode.
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2007102013171A CN101364741B (en) | 2007-08-09 | 2007-08-09 | Mobile phone charger |
| US11/946,861 US7821228B2 (en) | 2007-08-09 | 2007-11-29 | Mobile phone charger |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2007102013171A CN101364741B (en) | 2007-08-09 | 2007-08-09 | Mobile phone charger |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN101364741A CN101364741A (en) | 2009-02-11 |
| CN101364741B true CN101364741B (en) | 2012-03-28 |
Family
ID=40345846
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2007102013171A Expired - Fee Related CN101364741B (en) | 2007-08-09 | 2007-08-09 | Mobile phone charger |
Country Status (2)
| Country | Link |
|---|---|
| US (1) | US7821228B2 (en) |
| CN (1) | CN101364741B (en) |
Families Citing this family (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20120049800A1 (en) * | 2010-08-25 | 2012-03-01 | Clevx, Llc | Power supply system with automatic sensing mechanism and method of operation thereof |
| US9300203B2 (en) | 2007-12-10 | 2016-03-29 | Clevx, Llc | Battery power supply with automatic load sensing |
| CN101470506A (en) * | 2008-05-30 | 2009-07-01 | 伍威 | Multifunctional computer rechargeable battery system and use method thereof |
| CN101931249B (en) * | 2009-06-25 | 2012-09-19 | 鸿富锦精密工业（深圳）有限公司 | Electronic device capable of indicating battery charged state |
| TW201220950A (en) * | 2010-11-12 | 2012-05-16 | Analog Integrations Corp | Current control circuit of light emitting diodes capable of recycling energy |
| CN102255353A (en) * | 2011-05-20 | 2011-11-23 | 李秉哲 | Emergent charging device with only two batteries for mobile phone lithium battery |
| CN102300361B (en) * | 2011-06-01 | 2013-10-09 | 何林 | LED (light emitting diode) electric torch manufactured by one battery |
| CN105988030A (en) * | 2015-01-31 | 2016-10-05 | 鸿富锦精密工业(武汉)有限公司 | Electronic equipment and over-current protection circuit thereof |
| CN108092371B (en) * | 2016-11-15 | 2020-04-03 | 华为技术有限公司 | Charging and discharging device |
| CN110430767B (en) * | 2017-03-13 | 2022-09-20 | 日本烟草产业株式会社 | Smoking system, power supply control method, program, primary device, and secondary device |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0580180A1 (en) * | 1992-07-24 | 1994-01-26 | Nec Corporation | Charging circuit capable of supplying DC voltage directly to power supply circuit when battery is removed |
| CN2610549Y (en) * | 2003-01-28 | 2004-04-07 | 陈建宏 | Charger for mobile phone |
| CN2640056Y (en) * | 2003-07-03 | 2004-09-08 | 袁建平 | Charging wire |
Family Cites Families (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5717308A (en) * | 1995-10-20 | 1998-02-10 | Fuji Photo Film Co., Ltd. | Electric-supply equipment for camera |
| US5637978A (en) * | 1995-11-06 | 1997-06-10 | Kendrick Products Corporation | Battery booster |
| US20020190691A1 (en) * | 2001-06-19 | 2002-12-19 | Chen-Kuang Chen | Mobile phone emergency charger |
| US6950030B2 (en) * | 2002-09-05 | 2005-09-27 | Credo Technology Corporation | Battery charge indicating circuit |
| US7479759B2 (en) * | 2004-02-26 | 2009-01-20 | Research In Motion Limited | Electronic device including handheld electronic device with dual battery configuration, and associated method |
-
2007
- 2007-08-09 CN CN2007102013171A patent/CN101364741B/en not_active Expired - Fee Related
- 2007-11-29 US US11/946,861 patent/US7821228B2/en not_active Expired - Fee Related
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0580180A1 (en) * | 1992-07-24 | 1994-01-26 | Nec Corporation | Charging circuit capable of supplying DC voltage directly to power supply circuit when battery is removed |
| CN2610549Y (en) * | 2003-01-28 | 2004-04-07 | 陈建宏 | Charger for mobile phone |
| CN2640056Y (en) * | 2003-07-03 | 2004-09-08 | 袁建平 | Charging wire |
Also Published As
| Publication number | Publication date |
|---|---|
| CN101364741A (en) | 2009-02-11 |
| US20090039829A1 (en) | 2009-02-12 |
| US7821228B2 (en) | 2010-10-26 |
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| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
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| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20120328 Termination date: 20140809 |
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| EXPY | Termination of patent right or utility model |